Check out the Lars Anderson Bonsai Collection describing Chamaecyparis obtusa 'Chabo-hiba' in octopus style at the Arnold Arboretum. Here is a link that might be useful: Arnold Arboretum hinoki

Looks like a Pond Cypress to me. https://www.google.com/search?q=pond+cypress&prmd=sinv&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjFl7PulfDaAhUr5oMKHesLC2UQ_AUIEigC&biw=360&bih=560

Christopher, my photo of the larger thicket might be pensylvanica. P. pensylvanica is scarce in my area, and is mostly found in sandy areas like Dunes. There is only one observation for it in my county, whereas there are many observations for P. serotina. I have a small prunus that I think is serotina, and the leaves are smooth on the underside with no pubescence, and I see no nectary glands at all, so it's very hard to tell the leaves apart. The flowers are different though. P. serotina, P. pensylvanica, and P. persica each have distinct flowers.

It's a doublefile viburnum, V. plicatum f. tomentosum. Sorry, not a native :-)